Liams



UNITED STATES FRANK THEODORE VILLIAMS, 0F MERIDEN, CONNECTICUT, ASSIGNOR TO THE EDWARD MILLER do COMPANY, OF SAME PLACE.

vLAMP-BURNER.

SPECIFICATION forming part of Letters Patent No. 559,069, dated April 28, 1896. Application led May 24, 1895. Serial No. 550,497. (No model.)

To @ZZ whom t may concern:

Be it known that LFRANK THnononE WIL- LIAMS, a citizen of the United States7 residing at Meriden, New Haven county, Connecticut, have invented a new and useful Improvement in Lamp-Burners, of which the following is a specification.

My invention relates to that class of burners adapted to be used with a chimney having a substantially cylindrical portion at its lower end anda portion of increased diameter above this straight portion. It is inten ded to secure such chimneys irmly to the burner, so as to prevent accidental displacement.

In the accompanying drawing, which rep* resents in perspective a lamp-burner embodying my invention, the letter A is used to designate the burner; B B, external chimney-holding springs; C C, internal chimney-holding springs, consisting of outturned portion c, vertical portion c', and hook or reverted portion 0; D, a chimney.

In the example of my in vention illustrated in the drawing, the burner A is of the ordinary Sun type, and is provided at its lower end with a screwthread adapted to engage with a lamp-collar. Secured to the burner A, at diametrically opposite points, are two chimney-holding springs B, adapted to bear against the exterior of the chimneyD. These are the ordinary external springs used in the vast majority of burners of this type, and too well known to require further description. Midway of the springs B are two opposed springs C, adapted to bear internally'against opposite sides of the chimney D. As shown, these are secured in the ordinary manner to the under side of the deck of the burner, pass through the deck near the dome, and are formed with an outwardly-turned portion c, a straight nearly vertical portion c, and a hook or reverted portion c, adapted to engage with the inner surface of the chimney just above its straight portion or slip -z'. e. j ust Within the swelled portion or bulb of the chimney.

To most easily place the chimney on the burner, the operator, holding the chimney at an angle, as shown in dotted lines in the drawing, engages one edge with the outer side of a spring C. As the chimney is brought to a perpendicular position the external springs B act to guide it over the second internal spring C and the chimney readily slips to its seat on the deck of the burner. Although the hooks c of the springs@ engage in the bulb of the chimney a very short distance above the top of the slip or straight portion, it is found experimentally that the burner may be violently shaken or quickly inverted without displacing the'chimney from its seat.

It is obvious that the particular shape of the springs O is non-essential to my invention. be two oppositely-placed chimney-holding springs,adapted to engage with the inner surface of the chimney within its bulb or swelled portion, and midway of these two springs adapted to engage with the outer surface of the chimney in the usual manner. It is also clear that the application of my device is in no wise limited to a particular form of burner-as, for instance, the screw-on form shownbut that my chimney-holding springs would be equally useful in an Argand or any other form of burner used with a chimney of the shape described.

I am aware that burners have heretofore been made with a plurality of springs all adapted `to bear against the' inner side of the chimney. It is found in practice that it is very inconvenient to place the chimney over these springs. I am also aware that aburner has been made with a plurality of springs, each of which was secured to the deck of the burner at its middle point and acted to grip the chimney by bearing against both its interior and exterior surfaces. My device is much less expensive and `more convenient to operate than anything of this sort.

What I claim as my invention, and desire to secure by Letters Patent of the United States, is as follows:

l. A lamp-burner provided with a plurality of exterior chimney-holding springs and a plurality of interior chimney-holding springs adapted to bear against the bulb or swelled portion of a chimney above its lower straight cylindrical p ortion substantially as described.

It is only necessary that there shall 2. A lmnp-burner provided with@ plurality against the bulb or swelled portion of a eliiinof exterior chimney-holding springs und a ney above its lower straight cylindrical porplurality of interior oliilnuev-holding` springs tion7 substantially as deseribed.

each of Said interior springs being formed with FRANK THEODORE WILLIAMS. 5 a substantially vertical portion and a hook or VitneSses:

reverted portion at the upper end of said ver- GEO. F. COOPER,

tical portion, said hook being adapted to bear BENJ. C. KENNARD. 

